Final answer:
The discovery of 1 1/2 million species of animals during the Industrial Revolution highlights biodiversity and the impacts of the Industrial Revolution on the environment.
Step-by-step explanation:
The fact that scientists have discovered 1 1/2 million species of animals during the Industrial Revolution does not directly show anything about life during that time period. However, it does highlight the importance of biodiversity and the vast array of different animal species that exist on our planet. The Industrial Revolution had significant impacts on the environment, which in turn affected the distribution and survival of different species.